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rockers?

This is a discussion on rockers? within the Internal Engine forums, part of the LSx Technical Help Section category; for the trex cam it says not to use 1.8 lifters what lifters should i use the 1.7 1.75 or ...

  1. #1
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    rockers?

    for the trex cam it says not to use 1.8 lifters what lifters should i use the 1.7 1.75 or 1.85.or anything else i dont know about

  2. #2
    member since may 2000 nhraformula's Avatar
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    black
    2000 nhra edition formula

    stock rockers are more than enough.
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  3. #3
    Senior Member mrr23's Avatar
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    if you are wanting to use aftermarket rockers with a t-rex, you should stay with a 1.7 rocker. if you want to use a higher ratio, then you will need to check your piston to valve clearance and make sure the springs can handle the added lift.

    TR says that due to the fast ramp rates, that you should not use 1.8 rockers. no real explanation why.
    Last edited by mrr23; 01-02-2007 at 10:14 AM.

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    I actually thought the TRex was marginal to start with for PTV clearance, stick with the stockers unless you want to flycut.

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    whats fly cut?

  6. #6
    Senior Member mrr23's Avatar
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    dark bowling green
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    Quote Originally Posted by brad22486 View Post
    whats fly cut?
    cut notches into the pistons to add clearance for the valves.

  7. #7
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    thanks

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